Learner Resource 2
Introduction
Construct your own Hertzsprung-Russell diagram using the data below.
For each of the following stars:

Plot its position on the Hertzsprung-Russell diagram

Calculate its peak emission wavelength and hence deduce its colour

Decide on the star type when you have completed the entire diagram
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Star Name
Surface
temperature / K
Luminosity/ Peak
Lʘ
emission
Wavelength
Colour of
peak
emission
Star type
/nm
Arcturus
4000
114
Alderbaran
4000
100
Sun
5770
1
Sirius B
32000
1/400
Vega
9500
50
Barnard’s star
3000
1/2310
Proxima
centuri
3040
1/17700
Spica
22400
12000
Regulus
15400
360
Altair
7550
10.6
Betelgeuse
3650
8500
Tau Ceti
5350
0.50
Procyon A
6370
7
Antares
3500
10000
Mira
10000
3000
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